Anodization And Polish Surface Treatment
AssigneeApple Inc.
InventorsJody Akana, Howard Bujtor, Jonathan P. Ive, Masashige Tatebe
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Abstract
A metal surface treated to have a distinct cosmetic appearance such as an integral layer that is glossy may be used in electronic devices. The surface treatment may include polishing a metal surface, texturing the polished metal surface, polishing the textured surface, followed by anodizing the surface, and then polishing the anodized surface. The metal surface may also be dyed to impart a rich color to the surface.
Claims24
A method comprising the steps of:
- providing a metal part having a surface;
- polishing the surface;
- anodizing the surface to create an oxide layer after the step of polishing;
- and
- polishing the oxide layer after the step of anodizing,
- wherein the metal part is provided with an integral surface that is glossy.
A method for treating a metal surface of a metal part to obtain an integral surface that is glossy, comprising the steps of:
- providing a rough metal surface;
- forming a smooth surface from the rough metal surface;
- forming a surface with a plurality of peaks from the smooth surface;
- rounding the plurality of peaks;
- forming a metal oxide layer having a plurality of rounded peaks;
- imparting a color to the metal oxide layer;
- and
- forming a smooth surface from the colored metal oxide layer.
A method for treating a surface of a metal part to obtain an integral surface that is glossy and sparkling comprising the steps of:
- providing the metal part;
- texturing the metal part to provide a surface with a plurality of peaks;
- polishing the textured metal part to round the plurality of peaks;
- anodizing the polished metal part;
- and
- polishing the anodized metal part.
Dependencies are inferred from the claim text.